Heat-sealing paper is a pulp-based filter with excellent heat-sealing performance. Its superior seal strength makes it ideal for boiling applications. Our lineup includes chlorine-free bleached, unbleached, and high-extraction lattice-pattern types.

Are your paper filters bleached?

Our paper filters are made using ECF (Elemental Chlorine-Free) bleached pulp. This bleaching process does not use chlorine gas and helps reduce the amount of absorbable organic chlorinated compounds in factory wastewater. We also offer non-chlorinated, unbleached paper filters in our WTF series.